Hi, so I own 2 routers that are connected via LAN-LAN and I've decided to physically disconnect the first router antenna to not have some signal interference with the second one. I opened the router, I found the cable connected to the antenna and I disconnected it yet I can still connect via wifi to the first router. Is there something I'm missing? It's kind of weird. Is it possible that there's like an integrated antenna or something and the external one is just to boost the signal?